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Author Question: U-235 and Pu-239 are both A) radioactive isotopes. B) fissionable isotopes. C) heavier than ... (Read 137 times)

erika

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on: Jul 29, 2018
U-235 and Pu-239 are both
 
  A) radioactive isotopes.
  B) fissionable isotopes.
  C) heavier than lead.
  D) all of the above
  E) none of the above

Question 2

A spring stretches by 21.0 cm when a 135 N object is attached. What is the weight of a fish that would stretch the spring by 31 cm?
 
  A) 199 N
  B) 91.0 N
  C) 145 N
  D) 279 N


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bfulkerson77

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Reply #1 on: Jul 29, 2018
Answer to Question 1

Answer: D

Answer to Question 2

A


erika

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Reply #2 on: Jul 29, 2018
Thanks


bfulkerson77

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Reply #3 on: Jul 29, 2018
Welcome :)


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